Regular Xbox acting up.

After countless weeks trying to find a copy of Morrowind GotY Edition I decided to order one from Gamestop. You can tell that the disk has been resurfaced. My Xbox acts like it can barely handle the damn game, it freezes frantically for short periods and goes back to normal, just a few minutes ago, it freezed and was making an annoying buzzing noise. I've only had this happen while playing one other game, Mercenaries.

Do you think it's the game, or is my Xbox biting the curb? I don't remember this happening on my old Xbox while playing Morrowind.